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The project leader for EPI is Phil VK6APH.

Epimetheus (or Epi for short) is a general purpose input/output board that sits on the Atlas bus.

Early days as yet but the following block diagram explains the concept:

Epi V1.0.jpg

The design will use a CPLD that contains an I2C slave written by Steve KA6S. This will respond to multiple I2C address ranges so all the inputs and outputs can be individually addressed.

The use of a CPLD rather than a uP should result in an EMC quieter solution. The 200MHz cross point switch is intended for use with VHF/UHF/SHF transverters so that the various IFs can be switched around. The switches are intended to handle a few 10?s of mW so can be used to switch low level HF/2m etc drive around.

Since we can control the switching functions via USB from the PC we can include all manner of sequencing etc for amplifiers, preamps etc.

It is intended that the configuration be done via a GUI running on the PC.

Any ideas/suggestions/requests for other I/O that we can put on the board?

Why Epimetheus? From Encyclopedia Mythica? "Epimetheus ("afterthought") is the son of Iapetus and Clymene. He foolishly ignored his brother Prometheus' warnings to beware of any gifts from Zeus*. He accepted Pandora as his wife, thereby bringing ills and sorrows to the world".

Well the afterthought bit fits but I sure hope the latter doesn't!

(*you know what I mean Bob!)